Mêdog, or Metok, or Motuo County (; ), also known as Pemako ( meaning "Lotus Array", ), is a county as well as a traditional region of the prefecture-level city of Nyingchi in the Tibet Autonomous Region of the People's Republic of China (PRC). Pemako is considered famous as the Nyingma master Dudjom Rinpoche's birthplace, and as a prophesied refuge for Tibetan Buddhists by Padmasambhava. Geography Medog County is located in the southeast of the Tibet Autonomous Region and at the lower branch of Yarlung Tsangpo River. Medog County covers an area of . The average altitude of the county is above sea level. The county is located in the average altitude ranging from above sea level. It stretches from south of Kongpo and Bomê County through the lower Yarlung Tsangpo River to Arunachal Pradesh, surrounded by high mountains: the tallest is Namcha Barwa at ). Pemako has lush vegetation and many species of wild animals. Unlike other parts of Tibet, it receives plenty of rain, and has diverse biomes: there are subalpine coniferous forests in the north and temperate coniferous forest in the south in the low-lying area of the Yarlung Tsangpo gorges. The Yarlung Tsangpo flows through eastward when it reaches Mount Namcha Barwa, its bend making a U shape turn to penetrate into lower Himalayan ranges, thus carving out the Yarlung Tsangpo Grand Canyon, one of the deepest canyons in the world. Water dropping above 3,000 meters near Pei, about 300 metres from the end of the gorge. Climate and wildlife Medog has a favourable climate caused by the relatively low elevations in parts of the county (down to just 600 m above sea level in the Yarlung Zangbo river valley) and by the South Asian monsoon, which brings moisture from the Indian Ocean. The area is lush and covered with trees and includes the Medog National Animal and Plant Reserve Area. It has more than 3,000 species of plants, 42 species of rare animals under special state protection, and over a thousand hexapod species. History Frank Kingdon-Ward was the first Westerner to describe the area in his 1925 book, Riddle of the Tsangpo Gorges. In his 1994 Tibet Handbook, Hong Kong-born Victor Chan describes the extremely difficult trek from Pemakö Chung to the beyul Gonpo Ne, one of the remotest spots on earth. A modern journey by Ian Baker and his National Geographic-sponsored team to Pemakö